EXCLUSIVE: Jesy Nelson and other parents of babies born with spinal muscular atrophy (SMA) attended a debate in Parliament demanding all newborns are tested for condition

The singer, 35, revealed in January that her now one-year-old twins had been diagnosed with SMA Type 1, a rare muscle-wasting condition.

Jesy Nelson is in Parliament as MPs debate whether to test all newborns for spinal muscular atrophy (SMA) after opening up about her twins' devastating diagnosis